Perverse

per·verse  (pr-vûrs, pûrvûrs)

adj.

1. Directed away from what is right or good; perverted.

2. Obstinately persisting in an error or fault; wrongly self-willed or stubborn.

3.

a. Marked by a disposition to oppose and contradict.

b. Arising from such a disposition.

4. Cranky; peevish.

perpetrate

per·pe·trate  (pûrp-trt)tr.v. per·pe·trat·ed, per·pe·trat·ing, per·pe·trates

To be responsible for; commit: perpetrate a crime; perpetrate a practical joke

expeditiously

ex·pe·di·tious  (ksp-dshs)

adj.

Acting or done with speed and efficiency.